A girl who suffered catastrophic brain damage after a mix-up during treatment at Great Ormond Street Hospital has been awarded a multi-million pound damages payout.

Maisha Najeeb was a healthy 10-year-old girl despite having a rare medical condition that involved her arteries and veins getting tangled.

She had successfully received embolisation treatment - which involves injecting glue to block off bleeding blood vessels and an injection of a harmless dye to check the flow of blood around the brain - during hospital visits.

But in June 2010 the two syringes were mixed up and glue was wrongly injected into the artery to Maisha's brain, causing permanent brain damage.

Solicitor Edwina Rawson said there was no system in place for distinguishing between the syringes.

There will be further payments of £383,000 a year until Maisha is 19, increasing to £423,000 per year for as long as she lives, which some experts expect to be to the age of 64.

The trust, which admitted liability for Maisha's injuries, repeated its unreserved apologies for the shortcomings in her care.

The mix-up occurred during embolisation treatment in June 2010

It said her family had engaged open-heartedly with the trust, which had allowed staff to really learn from what happened to Maisha so that improvements could be made.

Neil Block QC, said: "We can't wind the clock back. We hope there are now systems and procedures in place to ensure such a tragic mistake cannot be made again.

"While money can't restore what Maisha has lost, we are sure a great burden has been lifted from the family by coming to the settlement we have."

Outside court, Maisha's father Sadir Hussain, of Ilford, Essex, said: "We are sad and devastated by what happened to our daughter. Her life is ruined. All her dreams have been broken.

"I hope that by bringing this case, lessons will have been learned to avoid this happening to other families.

"We are grateful that agreement has been reached with Great Ormond Street to ensure that Maisha's care needs are met."

The compensation will be spent on care and accommodation for Maisha, who needs assistance with all daily tasks day and night, is in a wheelchair and has lost the vast majority of her bodily and cognitive abilities.